WiFi smart electric energy meter. Single-phase Din rail 5(60)A 110V with over and under voltage current protection.
Noted: there are LAN settings, you can control locally.
1. Wifi: control by phone, remote control ON/OFF at any time from anywhere
2. Overvoltage and under-voltage protection set by phone.
Overvoltage 100-300V adjust by phone
Under-voltage protection 100-300V adjust by phone please noted if you use the meter for 110V, You have to adjust the over and under voltage value, or the meter cut off the power because under-voltage protection.
The meter cut off the power in 3s when over or under voltage, reconnect in 30s
3. Timer
4. Overcurrent protection 1-65A adjustable (default 65A)
5. Energy meter with RS485
6. Prepayment function. can set prepaid, when the electricity is used up, it will automatically trip to remind the user to re-purchase the electricity. can set prepaid, when the electricity is used up, it will automatically trip to remind the user to repurchase the electricity.
1. General Description
DDS238-4 W type multi-function smart energy meter is designed to measure single phase two wire AC active energy and variable parameter. The meter has an RS485 communication port and WIFI communication, it can use APP for remote reading and control on/off. All of its functions comply with the relative technical requirement for class 1 single-phase watt-hour meter in IEC62053-21 and its data communication rules obey the requirement of MODBUS-RTU and WIFI 802.11b/g/n. It is a long life meter with the advantage of high stability, high overload capability, low power loss, and small volume.
The meter should be installed in a suitable environment with an ambient temperature range between -25℃～+55℃, the relative humidity less than 75% and temperature limits between and-40℃～+70℃.
The meter is manufactured complying with international standard IEC62052-11 on “Electricity metering equipment (AC) General requirements tests and test conditions” and IEC62053-21 on “Static meters for active energy (classes 1 and 2)”.
2. Specification and Technical Parameters
2.1 Specification
| Meter type | DDS238-4 W |
| Rate frequency | 50 or 60 Hz |
| Rated current | 5(60)A ,10(100)A |
| Rate voltage | 120V / 220V / 230V /240V |
| Normal voltage range | 90%Un～110%Un |
| Limits voltage range | 70%Un～120%Un |
| kWh Accuracy | Class 1 |
| R.M.S accuracy | Class 0.5 |
| Pulse constant | See meter |
| RS485 port | MODBUS-RTU protocol, 1200～9600bps,None parity ,default 9600bps |
| WIFI | 802.11b/g/n ,only support 2.4GHz network , not support 5GHz network |
2.2 Basic parameters
| Delayed power on/off time | 60+5s |
| overvoltage / undervoltage / overload event judgment time | 3s |
| Overvoltage protection value | 270V+1(default)，APP can set value |
| Over voltage recovery value | 260V+1(default)= (APP overvoltage value – 10V) |
| Undervoltage protection value | 170V+1(default)，APP can set value |
| Undervoltage recovery value | 170V+1， (default)= (APP overvoltage value + 10V) |
| Overload protection value | 65A(default)， APP can set value |
| Delay on/off control | 00:01—24:00 Hour |
Note: when it happens interrupt power-supply , the meter will not cut off , undervoltage event must last 3s , then it will cut off.
- Current: 63A
- Features: remote control
- Material: Copper
- Certification: RoHS
- Certification: FCC
- Certification: ce
- Item Type: Switches
- Warranty: one year
- Model Number: OP234-8
- Switch Type: APP control
- voltage: 110-270VAC
- control: Smart cellphone
- control distance: Remote control at anytime anywhere
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